Chapter 1. Calibration
8 DigitalFlow™ GF868 Service Manual (1 and 2-Channel)
1.4.2 aLOW Option = [F1]
1. Enter the low reference value and press the [ENT] key.
2. Press [F1] to store the current low reference value or press [F2] to cancel the entry. In either case, the ANALOG INPUT
prompt will reappear.
3. Press [F2] to proceed to the next section.
1.4.3 aHIGH Option = [F2]
1. Enter the high reference value and press the [ENT] key.
2. Press [F1] to store the current high reference value or press [F2] to cancel the entry. In either case, the ANALOG INPUT
prompt will reappear.
3. Proceed to Procedure Options below.
1.4.4 4 mA Option = [F3]
1. Connect the 4 mA current source to the currently selected analog input, as shown in Figure 3 on page 6.
2. Press [F1] to store the current 4 mA value or press [F2] to cancel the entry. In either case, the ANALOG INPUT prompt
reappears.
3. Press [F4] to proceed to the next section.
1.4.5 20 mA Option = [F4]
1. Connect the 20 mA current source to the currently selected analog input, as shown in Figure 3 on page 6.
2. Press [F1] to store the current 20 mA value or press [F2] to cancel the entry. In either case, the ANALOG INPUT prompt
reappears.
3. Proceed to Procedure Options below.
1.4.5a Procedure Options
You have completed calibration of the analog output. Do one of the following:
• To calibrate another input, return to Step 3 in Accessing the Calibration Menu on page 7.
• To calibrate/test additional slots, press [F4] (EXIT) and proceed to the appropriate section.
• To leave the Calibration Menu, press [F4] (EXIT) twice.
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